NPDES permit SC0048143 · Major POTW · administratively continued, expires 2026-02-28 · EPA's file as of 2026-09-19
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This permit expired on 2026-02-28 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-07-31.
Reports are due about 29 days after each monitoring period ends (the most common figure among SC permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Oxygen, dissolved [DO] | MINIMUM | >= 1 mg/L | all year |
| 001 | Oxygen, dissolved [DO] | MINIMUM | >= 1 mg/L | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 8.5 SU | all year |
| 001 | pH | MAXIMUM | <= 8.5 SU | all year |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 45 mg/L | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 45 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 1251 lb/d | all year |
| 001 | Solids, total suspended | MO AVG | <= 776 lb/d | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 1877 lb/d | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 1163 lb/d | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | WKLY AVG | report only | all year |
| 001 | Nitrogen, total [as N] | WKLY AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | WKLY AVG | report only | all year |
| 001 | Nitrogen, total [as N] | WKLY MAX | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 11.55 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 16.37 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 17.33 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 24.56 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 482 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 423 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 723 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 635 lb/d | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | WKLY AVG | report only | all year |
| 001 | Phosphorus, total [as P] | WKLY AVG | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | WKLY AVG | report only | all year |
| 001 | Phosphorus, total [as P] | WKLY AVG | report only | all year |
| 001 | Acrylonitrile | MO AVG | <= .00089 mg/L | all year |
| 001 | Acrylonitrile | DAILY MX | <= .00013 mg/L | all year |
| 001 | Acrylonitrile | MO AVG | <= .023 lb/d | all year |
| 001 | Acrylonitrile | DAILY MX | <= .034 lb/d | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | WKLY AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | WKLY AVG | report only | all year |
| 001 | Chlorine, total residual | MO AVG | <= .06 mg/L | all year |
| 001 | Chlorine, total residual | MO AVG | <= .09 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .104 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .156 mg/L | all year |
| 001 | Chlorine, total residual | MO AVG | <= 2.5 lb/d | all year |
| 001 | Chlorine, total residual | MO AVG | <= 2.33 lb/d | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 4.33 lb/d | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 4.03 lb/d | all year |
| 001 | E. coli | 30DAVGEO | <= 126 MPN/100mL | all year |
| 001 | E. coli | 30DAVGEO | <= 126 MPN/100mL | all year |
| 001 | E. coli | DAILY MX | <= 349 MPN/100mL | all year |
| 001 | E. coli | DAILY MX | <= 349 MPN/100mL | all year |
| 001 | E. coli | 30DAVGEO | <= 126 MPN/100mL | all year |
| 001 | E. coli | 30DAVGEO | <= 126 MPN/100mL | all year |
| 001 | E. coli | DAILY MX | <= 800 MPN/100mL | all year |
| 001 | E. coli | DAILY MX | <= 800 MPN/100mL | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 25 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 25 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 40 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 40 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 1043 lb/d | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 646 lb/d | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 1668 lb/d | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 1034 lb/d | all year |
| 001 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
| 001 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
| 001 | Carbonaceous oxygen demand, % removal | MO AV MN | >= 85 % | all year |
| 001 | Carbonaceous oxygen demand, % removal | MO AV MN | >= 85 % | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AVG | <= 25 % | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AVG | <= 25 % | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MX | <= 40 % | all year |
| 001 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MX | <= 40 % | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states